Sources

text:

http://en.wikipedia.org/wiki/Idaho

http://reiseinfo-usa.de/usa/idaho/index.htm
http://.reiseinfo-usa.de/usa/idaho/index.htm
http://www.usa.de/portal/usade/app/content/recourceId/idaho.html
http://www.nps.gov/crmo/index.htm
http://en.wikipedia.org/wiki/Craters_of_the_Moon_National_Monument
http://www.usa-reise.de/index.php?option=com_content&task=view&id=257&Itemid=26
http://www.usa-tour.org/Reiseziele-im-Nordwesten-der-USA/Craters-of-the-Moon-National-Monument.html
http://en.wikipedia.org/wiki/Boise,_Idaho
http://www.cityofboise.org/
http://www.boisestate.edu/

pictures:

http://reiseinfo-usa.de/usa/idaho/index.htm
http://commons.wikimedia.org/wiki/File:Picabo_Idaho_2009.JPG
http://www.nps.gov/crmo/index.htm
http://www.amplifier.cd/Natur/Insekten-Tiere/Insekten_Tiere.htm
http://www.freizeitfreunde.de/frage_antwort/murmeltier-367417